Leandro Vieira is a Brazilian jiu-jitsu instructor and competitor, and a co-founder of Checkmat.

Leandro Vieira began training jiu-jitsu at a very young age: only 5 years old.

He has won medals at IBJJF Championships such as the Brazilian jiu-jitsu World Championships, Brazilian Nationals, Paulista Regionals, Las Vegas Open and Submission Ink Grappling Tournament.

Prominent trainers include Brazilian jiu-jitsu master Leandro Vieira, Bob Cook, Derek Yuen, Javier Mendez, and Andy Fong.

Within the facility, Muay Thai, Brazilian Jiu-jitsu, Wrestling and Boxing classes are taught.